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Overview of signal processing

An overview of signal processing of the proposed model is shown in Fig. [*]. First, noisy vowel /a/ f(t) shown in Fig. [*] A (the SNR of f(t) is 10 dB) for simulation 2 is decomposed into Sk(t) and $\phi_k(t)$ as shown in Fig. [*] B and C, respectively. Next, F0(t) is estimated as shown in Fig. [*] D. The concurrent time-frequency region of the desired signal f1(t) is determined using constraints (i) and (iii) as shown in Fig. [*] E and F. Finally, the instantaneous amplitudes and the instantaneous phases of two signals are determined from Sk(t) and $\phi_k(t)$ using constraints (ii) and (iv). The determined Ak(t) and $\theta_{1k}(t)$ are shown in Fig. [*] H and I, respectively. The segregated signal $\hat{f}_1(t)$ is shown in Fig. [*] J.


  
Figure: Overview of signal processing of the proposed model.
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Masashi Unoki
2000-10-26